I have been on the nuva ring for 3 years now. I always insert on Sundays, wait 3 weeks, remove on Sunday and have my period. I always have got my period even if it's just a light period that lasts one day. This month however, I did not get my period. I removed nuva ring on sunday, and I inserted nuva ring the next sunday. I did not receive a period on my ring free week. I did have light brown discharge. So light that I only noticed it when wiping. I just want to know if it's possible that nuva ring can cause little to no period at all? I've taken 2 pregnany tests and both have been negative.